Top burner assembly



1938- J. T. NYIARVIN ET AL 2,109,493

TOP BURNER ASSEMBLY Filed Dec. 24, 1934 2 Shets-Sheet 1 zmmoxs A TTORNEYMarch 1938 .J. "r MARVIN ET AL 2,109,493v

TOP BURNER AS SEMBLY Filed Dec. 24, 1934 2 Sheets-Sheet 2' '5 g" m J727% R Quad/11f mvmoxs Patented" Mar. 1, 1938 UNITED STATES 2,109,498'ror BURNER ASSEMBLY John '1'. Marvin, Fail-view Village, and mum L.Matthews, Lakewood, Ohio Application pecember 24, 1934, Serial No.758,992 3 Claims (oi. 158-99),

This invention relates to a unitary burner assembly. As designed, thestructure consists 01' a cluster of several burners, a gas cock, and alighter therefor, all of which are .joined together rigidly as a unit,whereby a minimum of labor and expense may be necessary for theirmanufacture, installation and maintenance. I

It is an object oi'this invention to provide a plurality of burners, allrigidly joined together,

1 and removable as a unit from an installation.

A further object is to provide, with such an assembly, a lighter,rigidly mounted therewith, and selectively removable therefrom, forigniting any of the burners.

A further object is to provide an assembly of four rigidly connectedburners, a valve means for operating them, and rigidly mounted togetherwith them.

A further object is to provide an assembly of this kind wherein a frontmanifold is eliminated.

A further-object is to provide a device of this kind wherein flash tubesare formed integrally therewith.

A further object is to provide a series of ra- 05 dially spaced,integrally formed Bunsen tubes,

' with flash tubes integral therewith, and spaced therefrom.

A further object is to provide a Bunsen tube having a burner bowlremovable therefrom,

whereby a separate'burner structure may be designed to suit any purpose,and whereby a port may be provided for injection of gas into the flashtube.

A further object is to provide a combination valve for this structurecompact in design so as -to flt therein, and including control for allthe burners, and also having a pilot control integral therewith.

, A further object is to design the Bunsen tubes m so that the valve andprojecting spuds may be fitted therein. This may be done by cutting outportions 0! the Bunsens for interfltting the valve.

A further object is to employ this cut-out portion as an air inlet toprovide primary air'ior the Bunsen.

The assembly is applicable to any usage requiring several burners. Inthe appended description, it is described in connection with a topburner assembly for gas ranges, but this is only by way of illustration.I

With these and other objects in view, the in- 1 vention is disclosed inthe following specification, and drawings, wherein:

Fig. 1 isa plan view of the device partially cut away. f

Fig. 2 is a horizontal sectional view of the valve used with the device.

Fig. 3 is a section on line 3-3 of Fig. l. Referring to the drawings, l3indicates a unitary casting having four branches thereon, ll, l2, i3 andi3 radiating from a common center portion; On each of these extensionsis secured burner l6. A valve I3 is located in the center portion and isadapted to control the flow of fuel to all of the burners. 10

- four units are integrally joined by a web portion 20 forming a part ofthe center portion of the 15 assembly.

Referring in particular to Fig. 3, each Bunsen extends radially fromthecenter oi the assembly. Fastened toeach is a burner bowl element,generally indicated at 2| and having a screw connection 22 with theBunsen tube. An opening 23 in the Bunsen registers with an opening 24 inthe bowl whereby gas may flow from the Bunsen into the bowl. As shown,the bowl includes an outer overturnedflange 25 and an inner cylin- 25drical portion 26 having a shoulder thereon. Siidably mounted over thebody is a flange member 21-, the flange portion 01 which extends outovertheoverturned portion of burner flange 23, so as to provide aslot-like gas outlet 23. The second flange member 21 has an innercylindrical portion 29 engaging with the cylindrical portion 26 of thebowl member and designed so as to provide a space having air outlets 30therein. A web member 3| extends across cylindrical portion 26. Element23 is capped, as shown, and secured thereto by a rivet or the like is anaeration plate 32. Plate 32, and second flange member 21, are fastenedto bowl 2| by a screw 33, threaded into web member 3|. By this meanssecondary air from underneath the burner may pass upwardly throughcylindrical portion 26 around web 3|, and through ports 30 where it isdirected by plate 32 outwardly to a point adjacent to the gas slot 23.

As heretofore described, flash tube I9 is formed integrally with Bunsenl4, and, as here shown, is formed as a single casting therewith. Thetube is raised oflthe Bunsen by two webs 34. The

secondary air, whereby to support the flame thereat, after the burnerhas ignited.

Thevalve l6, heretofore referred to, has therein a passage 33communicating with the inlet'3l 5 thereof and controlled by a needlescrew 38 having a lock nut 39 thereon. Port 36 at the top' thereof has amachined screw fitting 40 fastened therein and adapted to direct theflow of 'gas leaving passage 36 to form a pilot device. The valve is hassecured therein spud elements 4! to direct gas into each of the Bunsentubes. Each Bunsen is cut away as at 42 to provide air inlets the sizeof which may be adjusted by a shutter plate 43. Each opening 42, it willbe observed,

extends outward as at 44 and around the end of the Bunsen, whereby withplate 43 moved out of position, the valve may be dropped out fromunderthe burner assembly, passageways 42 and 44 permitting the spuds to beremoved from the Bunsens. Each Bunsen is likewise provided with a rest45 that may rest upon any suitable support in the range top.

Referring more particularly to Fig. 2, the valve used herewith includesa body member 50 having inlet 31 that extends into the bottom thereof asshown in Fig.3. Two tapered bores 5| and 52 are formed in body member50. A T-shaped passageway 53 provides communication between inlet 31 andboth taper 5| and taper 52. As will be understood, a similar T-shapedpassage 54 likewise provides additional communication between inlet 31and the two said tapered bores 5| and 52.

The valve provides four outlets, one to each of the Bunsen tubes. Theoutlets are designated 55, 56, 51 and 58. A passageway 59 is drilledinto the housing' 50 and extends almost therethrough. This passagewayprovides the T portion of inlet passage 53, and likewise providesoutlets from the tapered bores on the opposite sides that lead to rightangle passageways 60 and 6| communicating respectively with outlets 55and 56. A plug 51 is located as shown, to close up the end of passage59. In a like manner a passage 62 is extended almost all the way throughthe housing and provides communication from inlet passage 54 to therespective right angle passageways 63 and 64 leading respectively tooutlets 58 and 51. Passage 62 is plugged as at 65. Each of the rightangle passages 50, GI, and 63 and 64 may be drilled into. the body andplugged as at 66.

Within the tapered bore 5|, which is identical with the structure intapered bore 52 so that only one will be described, is fitted a dualplug control.

The first of these two plugs is designated 10 and has extending from oneend thereof a threaded projection 'll extending outside of the housingand surrounded by a spring and locknut device 12 and will maintain theplug in close fit in the tapered bore. Extending from the opposite endof plug 10 is a stem 13 secured to the plug and forming a means forrotating the same. This plug is provided with a transverse passageway 14adapted to provide communication between inlet passageway 53 and outletpassageway 59, 60 and 55.

A second plug 89 is fitted in bore 5! in tandem with plug 10. This plugis axially drilled to permit handle 13 to extend therethrough. A sleeve8| terminating in a handle and surrounding stem 13, is secured to thisplug for rotating it. A plate I BZ'is secured by a screw to the end ofthe housing and maintains a spring 83 acting against plug 89 to hold theplug in place. This plug is provided with a peripheral passageway 35extending half way therearound. which'passageway will establishcommunication between inlet 54 and outlet 62, 63, and 58.

The operation of the valve is as follows:

the position shown in Fig. 2 wherein passageway 14 will register withpassage 53 and passage 59 whereby gas is conducted through 'saidpassages and passage 60 with outlet 55. To cut this burner oil, it issimply necessary to rotate the plug until passage 14 therein no longerregisters with passageway 53. The control of outlet 56 is identical, itbeing operated by its corresponding handle identically with outlet 55.

To operate the burner connected with branch [4, stem 3| is rotated untilperipheral passageway 84 registers with passages 54 and 62 whereupon gaswill flow from passages 54 through peripheral passage 84, passage 62,passage 63 and outlet 58. To shut ofi this burner, stem 8! is rotated byits handle until the peripheral passage 84 no longer registers withpassage 54. In like manner the burner on branch I3 is controlled vby therotation of its handle.

Thus each of the burners may be separately adjusted to suit its ownparticular needs without affecting the adjustment of any of the others.At the same time a. unitary valve structure is provided requiring aminimum number of parts and also requiring a minimum of space so as tofit within the available space in the assembly.

In assembly the entire structure the burner bowls are secured to theirrespective Bunsens. All

shutters 43 are then opened and the valve is.in-'

serted therein from the bottom and, if desired, may be secured theretoby screws although normally it will be adequately supported on the gasinlet pipe. Inlet 31 of the valve is then joined into the flash tube andback to the pilot. This gas ignites at the pilot, flashes back through atube and ignites gas issuing from the burner port 28. Each shutter 43may then be adjusted to give the proper mixture in its Bunsen tube.

The handles of the valve may be led out into a cluster or front panelon'the stove where they form a neat attractive and convenient controldevice to allure the housewife to their use.

At any time that any adjustment is necessary it may be readily effectedsince the controls are all in the center of the range.

Having described the assembly, what is claimed is:

1. A device of the character described c0mprising a one piece basemember, a plurality of mixing tubes integrally formed therewith, saidtubes radiating from a common center and the adjacent ends of said tubesand said base providing a definite space between such tube ends at saidcommon center, a valve device removably mounted in said space, gasdirecting projections on said device extending into said mixing tubes,each of said tubes having a cut-away portion at one side to permit theunit assembly of said valve device with said base member, and burnermeans oper-' atively connected to the. outer ends of said tubes.

2. A device of the character described comprising a base member, aplurality of mixing tubes, said tubes and base member being integrallyjoined, the adjacent ends of said tubes being spaced from one another toprovide a definite space between the same and said base, a valve devicefitted into said space, gas nozzle projections on said valve deviceextending into said mixing tubes, means on said tubes accommodating saidprojections to permit the unit assemblyof said valve device and saidintegrally formed base mixing tube member, and burner means operativelyconnected to the outer ends of said tubes.

- 3. A device of the character described comprising a base member, aplurality of mixing tubes formed integrally therewith and radiating froma common center on said'base member, the inner adjacent ends of saidmixing tubes being spaced to provide a definite recess between the sameand said base member, a valve device closely fitted into 3 said recess,a plurality of projections on said valve device extending into saidmixing tubes, fuel regulating spuds on said projections, each of saidmixing tubes having a cut-away portion adjacent their inner ends topermit the unit assembly of I said valve device with attached spuds intosaid recess, and a shutter adjacent each. of said ,cut-

away portions of said tubes whereby to provide means for regulating theair mixture adjacent the spuds within said tubes and said shuttersacting to confine said spuds within said tubes to prevent thedisassembly of said unitary base and tube member and said valve device.

' JOHN T. MARVIN.

BiRCI-IARD L. MATTHEWS.

